CN102087916B - Fully insulated pluggable voltage transformer for gas insulation switch cabinet - Google Patents
Fully insulated pluggable voltage transformer for gas insulation switch cabinet Download PDFInfo
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- CN102087916B CN102087916B CN 201010593643 CN201010593643A CN102087916B CN 102087916 B CN102087916 B CN 102087916B CN 201010593643 CN201010593643 CN 201010593643 CN 201010593643 A CN201010593643 A CN 201010593643A CN 102087916 B CN102087916 B CN 102087916B
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Abstract
The invention discloses a fully insulated pluggable voltage transformer for a gas insulation switch cabinet, which comprises a voltage transformer body, wherein a first outlet head and a second outlet head are arranged on a primary high voltage coil on the voltage transformer body, and the first outlet head and the second outlet head are respectively connected to a high voltage side or a neutral point side of a power supply through an inner conic bushing. The voltage transformer adopts a simple structure, and can be conveniently used on various gas insulation switch cabinets. Installation hidden trouble is eliminated. Meanwhile, higher wire voltage and overvoltage in the voltage transformer can be better tolerated, the influence of the failure of the voltage transformer on the whole electric system is reduced, and the problem that the single wiring method of the gas insulation switch cabinet and the pluggable voltage transformer is better solved.
Description
Technical field
The present invention establishes and relates to a kind of voltage transformer, and particularly a kind of gas insulation switch cabinet is with the plug-in voltage transformer of all insulation.
Background technology
For a long time; The following system of China 35KV adopts the isolated neutral operational mode mostly; This operational mode allows to operate with failure in the regular hour, thereby has improved the power supply reliability of system greatly when system's generation phase ground connection; But along with the expansion of load collection district, town and country electrical network and the development of indivedual little load area electrical networks, system's direct-to-ground capacitance also increases rapidly.When certain disturbance took place in system, very easily initiating system interior resonance overvoltage caused the intermittent ground connection of system, high-tension fuse fusing and body to burn, and occurs the unit trip accident when serious.Therefore; For the semi-insulated voltage transformer that high-tension coil ground connection side has only 3000V-5000V insulation against ground level; The high-tension coil two ends can both tolerate all insulation voltage transformer of specified insulation against ground level; Can better tolerate resonance overvoltage and ultra-low frequency oscillation overcurrent, make the voltage transformer operation more reliable.The all insulation voltage transformer has V-type at present, and star-like or list is only striden the available for different connection modes that is connected, and semi-insulated voltage transformer can only adopt the star-like mode of connection.
Along with technological progress; Since abroad since last century the eighties research and develop gas insulation switch cabinet; And China just begins the introduction absorption in the beginning of this century, and research and development are produced and using gases insulated switch cabinet, and gas insulation switch cabinet has occupation of land and lacks; Advantage such as safe and reliable to operation is the main direction of switch industry Future Development.But because voltage transformer adopts the restriction that plugs connected mode on the gas insulation switch cabinet; Use the single head plug to connect all the time; Be that voltage transformer high pressure winding can only have stature plug to be connected in the high-pressure side, promptly have only semi-insulated plug-in voltage transformer.
Summary of the invention
Technical problem to be solved by this invention is to provide the plug-in voltage transformer of a kind of gas insulation switch cabinet with all insulation, to solve the problem that existing gas insulation switch cabinet can not use all insulation formula voltage transformer.
Technical scheme of the present invention is following;
A kind of gas insulation switch cabinet is with the plug-in voltage transformer of all insulation; Comprise the voltage transformer body; A high-tension coil on the said voltage transformer body is provided with first leading-out end and second leading-out end, and said first leading-out end and second leading-out end are connected to the high-pressure side or the neutral point side of power supply respectively through the inner cone sleeve pipe.
Further, said inner cone sleeve pipe adopts the plug ways of connecting to be placed in respectively on first leading-out end and second leading-out end.
Further, said first leading-out end is protruding this external outer conehead of said voltage transformer that is arranged on.
Further, said first leading-out end is formed by being embedded in intrinsic interior conehead of said voltage transformer and jockey, and said jockey is inserted in the said interior conehead.
Further, said jockey is made up of pitman, silicone rubber sleeve and spring assembly, and said silicone rubber sleeve is nested in the outside of said pitman, and said spring assembly is installed in the two ends of said pitman.
Further, said second leading-out end is protruding this external outer conehead of said voltage transformer that is arranged on.
Further, said second leading-out end is formed by being embedded in intrinsic interior conehead of said voltage transformer and jockey, and said jockey is inserted in the said interior conehead.
Further again, said jockey is made up of pitman, silicone rubber sleeve and spring assembly, and said silicone rubber sleeve is nested in the outside of said pitman, and said spring assembly is installed in the two ends of said pitman.
The present invention is simple in structure, easy to use; Can be installed in easily in the gas insulation switch cabinet commonly used at present and use; Thereby reach higher line voltage of effective minimizing system and the influence of inner overvoltage to voltage transformer; Increased the reliability of voltage transformer and the purpose in useful life, so just can be so that whole power system operation is more stable; And when using the utility model; Can also be after having guaranteed the specified insulation level of switch cubicle; The error that well adapts to voltage transformer epoxy casting when installing; Avoid the alignment error of inner cone sleeve pipe in the switch cubicle, the problem of all kinds of switch cubicle uses aspect that the hidden danger when having solved partly owing to installation produces.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is a structure diagram of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention 1.
Fig. 3 is the structural representation of the embodiment of the invention 2.
Fig. 4 is the structural representation of the embodiment of the invention 3.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
The present invention is the plug-in voltage transformer of a kind of gas insulation switch cabinet with all insulation; Be mainly used in and solve existing gas insulation switch cabinet, semi-insulating formula voltage transformer often can only be installed in use owing to receive the influence of its inner mounting structure, and can not the more outstanding all insulation formula voltage transformer of convenient and swift result of use; So that the problem aspect the practicality occurs at switch cubicle; For this reason, on the basis of existing semi-insulating formula plug-in voltage transformer, improve.
As shown in Figure 1, a kind of gas insulation switch cabinet of the present invention comprises voltage transformer body, first leading-out end, second leading-out end and inner cone sleeve pipe with the plug-in voltage transformer of all insulation; First leading-out end and second leading-out end are arranged on the high-tension coil on the voltage transformer body, and first leading-out end and second leading-out end are connected to the high-pressure side or the neutral point side of power supply respectively through the inner cone sleeve pipe.Compare with semi-insulating formula voltage transformer during use, can better tolerate resonance overvoltage and ultra-low frequency oscillation overcurrent, make the voltage transformer operation more reliable.And according to the difference of actual installation situation, the needs during with use, high-tension coil leading-out end can or be arranged on the inboard interior conehead 11 of all insulation voltage transformer body by the outer conehead that is arranged on all insulation voltage transformer body exterior 12 and form.
Embodiment 1:
As shown in Figure 2, employed in the present embodiment all insulation formula voltage transformer 21, two high pressure leading-out ends that are a high-tension coil are respectively the outer conehead 12 and the voltage transformer that the interior conehead that is embedded in body interior 11 is formed that protrude from body.This all insulation formula voltage transformer 21 also needs on all insulation formula voltage transformer 21, to be provided with two inner cone sleeve pipes 22 when assembling with the related gas insulation switch cabinet of the utility model.For this reason; All insulation formula voltage transformer 21 can advanced Xingqi one end the installation of outer conehead 12; Be about to an inner cone sleeve pipe 22 and use the plug ways of connecting of rubber-covered to be directly installed on the outer conehead 12, just can make outer conehead 12 be connected to the high-pressure side or the neutral point side of power supply through inner cone sleeve pipe 22 and spring assembly 23 then easily; During the installation of the interior conehead 11 on voltage transformer 21 other ends; Conehead 11 can easily directly not link together with inner cone sleeve pipe 22 in considering; For this reason; Between interior conehead 11 and inner cone sleeve pipe 22, one group of jockey can be installed, this jockey is made up of the pitman 25 of conehead in being used to connect 11 and inner cone sleeve pipe 22, the silicone rubber sleeve 24 that is arranged on the spring assembly 26 at pitman 25 two ends and is nested in pitman 25 outsides, during installation; In only needing earlier jockey is inserted among the conehead 11; And then inner cone sleeve pipe 22 used the plug connected mode of rubber-covereds, and be installed on the silicone rubber sleeve 24, so just can make inner cone head 11 be connected to the high-pressure side or the neutral point side of power supply through jockey and inner cone sleeve pipe 22.
In the whole erection process of all insulation formula voltage transformer 21; Because conehead 11 can be through the plug connected mode of rubber-covered in the outer conehead 12 that the high pressure winding is drawn and one; Be connected with inner cone sleeve pipe 22, just be connected to the high-pressure side or the neutral point side of power supply then.This connected mode easily not only can effectively guarantee high pressure conducting and high pressure insulation against ground, makes the electrode part of each conehead to carry out high pressure with spring assembly 23 and 26 and is connected; And the setting of silicone rubber sleeve 24 on the jockey; More can be under the prerequisite of the rated insulation level that effectively guarantees gas insulation switch cabinet, well avoid by the alignment error of inner cone sleeve pipe 22 in voltage transformer epoxy casting error and the switch cubicle gas tank draw in the problem aspect the practicality.
Embodiment 2:
As shown in Figure 3, employed in the present embodiment all insulation formula voltage transformer 31 is the voltage transformer that two high pressure leading-out ends of a high-tension coil all are made up of two interior coneheads 11 that are embedded in the voltage transformer body interior.This all insulation formula voltage transformer 31 is when connecting; Can connect with reference to the installation method of interior conehead 11 among the embodiment 1; That is, between the interior conehead 11 and inner cone sleeve pipe 32 at its two ends, one group of jockey is installed; This jockey can be made up of the spring assembly 33 at pitman 35, pitman two ends and the silicone rubber sleeve 34 in the pitman outside; For this reason, inner cone sleeve pipe 32 just also can be connected on the silicone rubber sleeve 34 of jockey one end through the plug connected mode of rubber-covered, thereby makes two the interior conehead 11 logical high-pressure side or neutral point side that can be connected to power supply through jockey and inner cone sleeve pipe 32.The mounting means of conehead 11 in this use is two can reduce the problem of the practicality aspect that alignment error produced of inner cone sleeve pipe 32 in voltage transformer epoxy casting error and the switch cubicle gas tank under the prerequisite of the rated insulation level that guarantees switch cubicle.
Embodiment 3:
As shown in Figure 4, employed in the present embodiment all insulation formula voltage transformer 41 is the voltage transformer that two high pressure leading-out ends of a high-tension coil all are made up of two outer coneheads 12 that protrude from the voltage transformer body.This all insulation formula voltage transformer 41 when mounted; Can install with reference to the installation method of embodiment 1 China and foreign countries' conehead 12; Promptly; The plug connected mode of inner cone sleeve pipe 42 through rubber-covered is directly installed on the outer conehead 12, makes outer conehead 12 can be connected to the high-pressure side or the neutral point side of power supply through inner cone sleeve pipe 42 and spring assembly 43.
The method of attachment of the two outer coneheads 12 of this use; Not only can significantly reduce during installation the used workload of voltage transformer is installed; Also can both tolerate under the prerequisite of specified insulation against ground level at the high-tension coil two ends of satisfying switch cubicle; Tolerate resonance overvoltage and ultra-low frequency oscillation overcurrent, promote the serviceability of whole operating circuit.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The scope of the claimed invention by the appended claims and their equivalents defined
.
Claims (4)
1. a gas insulation switch cabinet is with the plug-in voltage transformer of all insulation; Comprise the voltage transformer body; It is characterized in that; A high-tension coil on the said voltage transformer body is provided with first leading-out end and second leading-out end, and said first leading-out end and second leading-out end are connected to the high-pressure side or the neutral point side of power supply respectively through the inner cone sleeve pipe;
Said first leading-out end is formed by being embedded in the said voltage transformer intrinsic first interior conehead and first jockey, and said first jockey is inserted in the said first interior conehead;
Said second leading-out end is formed by being embedded in the said voltage transformer intrinsic second interior conehead and second jockey, and said second jockey is inserted in the said second interior conehead;
Said first jockey and second jockey are formed by pitman, silicone rubber sleeve and spring assembly, and said silicone rubber sleeve is nested in the outside of said pitman, and said spring assembly is installed in the two ends of said pitman.
2. a kind of gas insulation switch cabinet according to claim 1 is characterized in that with the plug-in voltage transformer of all insulation said inner cone sleeve pipe adopts the plug ways of connecting to be placed in respectively on first leading-out end and second leading-out end.
3. a kind of gas insulation switch cabinet according to claim 1 and 2 is characterized in that with the plug-in voltage transformer of all insulation said first leading-out end is protruding this external outer conehead of said voltage transformer that is arranged on.
4. a kind of gas insulation switch cabinet according to claim 1 and 2 is characterized in that with the plug-in voltage transformer of all insulation said second leading-out end is protruding this external outer conehead of said voltage transformer that is arranged on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010593643 CN102087916B (en) | 2010-03-16 | 2010-12-17 | Fully insulated pluggable voltage transformer for gas insulation switch cabinet |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020132907 | 2010-03-16 | ||
| CN201020132907.0 | 2010-03-16 | ||
| CN 201010593643 CN102087916B (en) | 2010-03-16 | 2010-12-17 | Fully insulated pluggable voltage transformer for gas insulation switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087916A CN102087916A (en) | 2011-06-08 |
| CN102087916B true CN102087916B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010593643 Active CN102087916B (en) | 2010-03-16 | 2010-12-17 | Fully insulated pluggable voltage transformer for gas insulation switch cabinet |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19715825A1 (en) * | 1997-04-16 | 1998-10-22 | Kg Ritz Messwandler Gmbh & Co | Voltage converter |
| DE19740664C2 (en) * | 1997-09-16 | 2001-10-31 | Kg Ritz Messwandler Gmbh & Co | Converter arrangement with isolating device |
| DE19814034A1 (en) * | 1998-03-30 | 1999-10-07 | Kg Ritz Messwandler Gmbh & Co | Transducer system with decoupling arrangement for continuous monitoring of high or medium voltage systems, e.g. switching systems |
| US6535097B1 (en) * | 1997-09-16 | 2003-03-18 | Kommanditgesellschaft Ritz Messwandler Gmbh & Co. | Transformer system provided with a decoupling system |
| CN100524552C (en) * | 2005-04-06 | 2009-08-05 | 广州霍斯通电气有限公司 | Electrical connecting high-voltage mutual inductor |
| CN1845410A (en) * | 2005-04-06 | 2006-10-11 | 广州霍斯通电气有限公司 | High-voltage electrical cabinet for connecting mutual inductor |
-
2010
- 2010-12-17 CN CN 201010593643 patent/CN102087916B/en active Active
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| Publication number | Publication date |
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| CN102087916A (en) | 2011-06-08 |
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